دورية أكاديمية
أعرض في EDS

Optimizing 3D printed ankle-foot orthoses for patients with stroke: Importance of effective elastic modulus and finite element simulation.

التفاصيل البيبلوغرافية
العنوان: Optimizing 3D printed ankle-foot orthoses for patients with stroke: Importance of effective elastic modulus and finite element simulation.
المؤلفون: Yeh CH; Medical Device Innovation Center, National Cheng Kung University, Taiwan., Lin KR; Department of Biomedical Engineering, National Cheng Kung University, Taiwan., Su FC; Medical Device Innovation Center, National Cheng Kung University, Taiwan.; Department of Biomedical Engineering, National Cheng Kung University, Taiwan., Hsu HY; Department of Physical Medicine and Rehabilitation, National Cheng Kung University Hospital, National Cheng Kung University, Taiwan.; Department of Occupational Therapy, National Cheng Kung University, Taiwan., Kuo LC; Medical Device Innovation Center, National Cheng Kung University, Taiwan.; Department of Physical Medicine and Rehabilitation, National Cheng Kung University Hospital, National Cheng Kung University, Taiwan.; Department of Occupational Therapy, National Cheng Kung University, Taiwan., Lin CC; Department of Physical Therapy, I-Shou University, Taiwan.
المصدر: Heliyon [Heliyon] 2024 Feb 27; Vol. 10 (5), pp. e26926. Date of Electronic Publication: 2024 Feb 27 (Print Publication: 2024).
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Elsevier Ltd Country of Publication: England NLM ID: 101672560 Publication Model: eCollection Cited Medium: Print ISSN: 2405-8440 (Print) Linking ISSN: 24058440 NLM ISO Abbreviation: Heliyon Subsets: PubMed not MEDLINE
أسماء مطبوعة: Original Publication: London : Elsevier Ltd, [2015]-
مستخلص: Patients with stroke often use ankle-foot orthoses (AFOs) for gait improvement. 3D printing technology has become a popular tool in recent years for the production of AFOs due to its strengths on customization and rapid manufacturing. However, the porosity of the 3D printed materials affects the kinetic features of these orthoses, leading to its lower-strength than solid ones. The effective elastic modulus of 3D printed material was measured following standard test method to obtain the kinetic features precisely in a finite element simulation. This study demonstrated that the porosity of 3D printed samples using 100% fill density was 11% for PLA and 16% for Nylon. As a result, their effective elastic modulus was reduced to 1/3 and 1/12 of fully solid objects, respectively, leading to a lower stiffness of 3D printed orthoses. A fatigue testing platform was built to verify our finite element model, and the findings of the fatigue test were consistent with the analysis of the finite element model. Further, our AFO has been proven to have a lifespan exceeding 200 thousand steps. Our study highlights the significance of determining the actual porosity of 3D printed samples by calculating the effective elastic modulus, which leads to a more precise finite element simulation and enables reliable prediction of the kinetic features of the AFO. Overall, this study provides valuable insights into the production and optimization of 3D printed AFOs for patients with stroke.
Competing Interests: The authors declare no competing interests.
(© 2024 The Authors.)
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فهرسة مساهمة: Keywords: 3D printed materials; Ankle-foot orthosis; Effective elastic modulus; Finite element model
تواريخ الأحداث: Date Created: 20240307 Latest Revision: 20240308
رمز التحديث: 20240308
مُعرف محوري في PubMed: PMC10915387
DOI: 10.1016/j.heliyon.2024.e26926
PMID: 38449597
قاعدة البيانات: MEDLINE
الوصف
تدمد:2405-8440
DOI:10.1016/j.heliyon.2024.e26926